package com.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "AdminFilter")
public class AdminFilter implements Filter {
    public void destroy() {
    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {
        //获取request对象
        HttpServletRequest request=(HttpServletRequest) req;
        //
        HttpServletResponse response=(HttpServletResponse) resp;
        Object admin=request.getSession().getAttribute("admin");
        if(admin==null){
            response.sendRedirect(request.getContextPath()+"/page/loginAdmin/login.jsp");
        }else{
            chain.doFilter(req, resp);

        }
    }

    public void init(FilterConfig config) throws ServletException {

    }

}
